Steady secondary flows of Phan-Thien-Tanner fluids in the vicinity of a corner

Mario F. Letelier, Mauricio Acosta, Juan Córdova, Dennis A. Siginer

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Secondary flows of Phan-Thien-Tanner fluids in channels formed by two intersecting walls, and driven by a pressure gradient parallel to the intersection line, are studied by means of perturbation analysis, where the perturbing parameter is the relaxation time. The velocity field is analysed in relation to the opening angle and distance from the comer within the fluid region. An analytically exact solution is found at 0(λ3), through the mathematical structure of which is possible to draw some general and important conclusions about the dynamics of the transversal flow. Such results are of potential interest in the design of devices aimed at exploiting the transport capacity of secondary flows.

Original languageEnglish
Title of host publicationFluids Engineering
PublisherAmerican Society of Mechanical Engineers (ASME)
Pages291-295
Number of pages5
ISBN (Print)0791836576, 9780791836576
DOIs
Publication statusPublished - 2002

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

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    Letelier, M. F., Acosta, M., Córdova, J., & Siginer, D. A. (2002). Steady secondary flows of Phan-Thien-Tanner fluids in the vicinity of a corner. In Fluids Engineering (pp. 291-295). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/IMECE2002-32233